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EnginePart report

2012 Chevrolet Silverado 2500 Engine Problems

Complaints
8about this part
Share
15%of 53 total for the year
Median mileage
41,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the engine of the 2012 Chevrolet Silverado 2500, 15% of the 53 complaints for this model year. Where a mileage was given, the median is 41,000 miles.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I have been having multiple glow plug failures on my vehicle. One right after another. It has gone to the dealer every single time for the repairs I even asked the dealer mechanic if I was the only one and he stated that there are many others with my issue with failing glow plugs. The dealer has a full record of all the issues iv had and every time my vehicle has been in their shop. Something has got to be done! Soon as I try to use my remote start the truck starts then dies then I get a check engine light so I call onstar they give me the code and sure enough its a failed glow plug. …”

NHTSA complaint #10894288, filed 2016-08, 50,000 miles

“When temperatures drop below 30 degrees the tire pressure warning light and the low coolant light comes on. Took to dealership and they advised that both warning lights do that below 28 degrees. This has occurred since 2013 winter. Glow plugs going out one at time GM will only replace as they go out up to 120000 not enough being done with this.”

NHTSA complaint #10785791, filed 2015-10, 23,000 miles

“Several problems.. Multiple failures of glow plugs (known GM problem) and nox exhaust sensors, high def use, unusual buildup in the exhaust filter requiring many dealer visits, downtime, repair costs and extremely poor fuel mileage. Glow plugs often fail at initial start when system is cold .. Oat has been from about 45 to about 90 degrees fahrenheit. Altitude, about 20 to 1200 ft asl. Dealer serviced only. Vehicle has no mods!!!!”

NHTSA complaint #10905646, filed 2016-09, 12,000 miles

“The Transmission Control Module failed causing the vehicle to loose power and operate only in limp mode . General Motors does not have a replacement module available, leaving the vehicle inoperable. GM has no reliable information as to when a module will be available. I had to use a third party service to try and repair the module for a cost of over $1,200. This seems to be a common problem with the 2008-20015 GM Duramax with the Allison transmission.”

NHTSA complaint #11516029, filed 2023-04

Related service bulletins

Engine: other model years

YearComplaintsShare of year
2026215%
2025723%
2024139%
2023715%
202277%
202189%
2020109%
20191926%
20181223%
20171222%
201687%
2015127%
2014718%
2013612%
2012815%
201199%
2010210%
200935%
200842%
200731%
200653%
200552%
2004144%
2003153%
2002134%
2001256%
200011%
199922%
199712%

Other parts of the 2012 Chevrolet Silverado 2500

Electrical system
11 complaints
Fuel system
10 complaints
Air bags
9 complaints
Other or unknown
8 complaints
Transmission and drivetrain
5 complaints
Steering
4 complaints
Body and structure
4 complaints
Tires
3 complaints
Wheels
3 complaints
Brakes
2 complaints
Electronic stability control
1 complaints
Seats
1 complaints

← All problems reported for the 2012 Chevrolet Silverado 2500

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology